# Service bulletin AR831

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10110856
- Published by NHTSA: 2017\-08\-10
- Manufacturer's number: AR831
- Manufacturer's date: 2017\-02\-06
- NHTSA component: STRUCTURE; STRUCTURE:FRAME AND MEMBERS

## NHTSA's summary

Front Pivot Mount Reinforcement\-Complaint\-Pivot Mounts 1306500\-18 \(RS\) and 1306500\-19 \(CS\)= bolts coming loose/shearing causing bracket failure. Cause\-Inferior bracket support leading to bolt shearing and pivot mount movement. Correction\-Add gussets and welding per instruction. Vehicles Affected\-Units built with the front pivot mount bolted to the ARBOC frame without welding \(SOM only between SO\# 2202 and 2736\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10110856-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10110856-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame

## Vehicles listed

- 2015 to 2016 ARBOC SPIRIT OF MOBILITY

## Other bulletins for the same vehicles and component

- [AR860](/bulletins/10144771.md), 2018-09-17, Service bulletin: STRUCTURE:FRAME AND MEMBERS. AR860\-Front Pivot Mount Inspection and Repair. Complaint\-Pivot mount bolts having repeated premature failure. Cause\-Spring pivot bolt movement allowed by elongated mounting hole. Correction\-Inspect/replace bolt. Labor allowance 2 hours per unit. Vehicles affected\-Units that have completed AR831 and built with the front pivot mount bolted to the ARBOC frame without welding. \(Buses between SO\# 2202 and 2736\)
- [AR839](/bulletins/10115843.md), 2017-08-25, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION:REAR:SHOCK ABSORBER; STRUCTURE; SUSPENSION:FRONT:SHOCK ABSORBER. AR839\-Upper Shock/Track Bar Mount Replacement. Complaint\-Cracking at upper shock and track bar mounts on chassis frame. Cause\-Concentrated stress loads. Correction\- Drill 1/8" stop holes into frame at the end of the cracks and weld provided retrofit bracket in affected areas.

JSON: [/v1/bulletins/10110856](/v1/bulletins/10110856)

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